7n+15=4n-9

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Solution for 7n+15=4n-9 equation: 



7n+15=4n-9

We move all terms to the left:

7n+15-(4n-9)=0

We get rid of parentheses

7n-4n+9+15=0

We add all the numbers together, and all the variables

3n+24=0

We move all terms containing n to the left, all other terms to the right

3n=-24

n=-24/3

n=-8

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